div {
  width: 1000px;
  height: 500px;
  background-color: skyblue;
  display: flex;
  flex-direction: column-reverse;
  gap: 20px;
  justify-content: space-around;
}
div > span {
  /* width: 200px; */
  height: 200px;
  background-color: hotpink;
  flex: 1;
}
